支气管哮喘(简称哮喘)是以多变的气流受阻、支气管高反应性和气道炎症为特征的慢性疾病。目前呼吸道过敏性疾病的患病率逐年上升,据世界卫生组织(WHO)估计,全球约有3亿哮喘患者[1],虽然其病因及发病机制目前尚未完全清楚,但患者的特应质和外界环境因素在发病机制中发挥着重要作用,这些因素可使哮喘患者发生超敏反应。由毛癣 Bronchial asthma (asthma) is a chronic disease characterized by variable airflow obstruction, bronchial hyperresponsiveness and airway inflammation. Currently, the prevalence of allergic respiratory diseases is increasing year by year. According to the World Health Organization (WHO), there are about 300 million asthmatics in the world [1]. Although its etiology and pathogenesis are not yet fully understood, External environmental factors play an important role in the pathogenesis, these factors can make patients with asthma hypersensitivity. By the ringworm